freebsd-dev/release/sysinstall/dos.c

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/*
* The new sysinstall program.
*
* This is probably the last attempt in the `sysinstall' line, the next
* generation being slated to essentially a complete rewrite.
*
* $Id: dos.c,v 1.21 1998/10/28 02:18:08 jkh Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
* Copyright (c) 1995
* Gary J Palmer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
1995-05-30 08:29:07 +00:00
* notice, this list of conditions and the following disclaimer,
* verbatim and that no modifications are made prior to this
* point in the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "sysinstall.h"
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
#include <grp.h>
#define MSDOSFS
#include <sys/mount.h>
#include <msdosfs/msdosfsmount.h>
#undef MSDOSFS
static Boolean DOSMounted;
static char mountpoint[] = "/dist";
Boolean
mediaInitDOS(Device *dev)
{
struct msdosfs_args args;
if (DOSMounted)
return TRUE;
Mkdir(mountpoint);
memset(&args, 0, sizeof(args));
args.fspec = dev->devname;
args.uid = args.gid = 0;
args.mask = 0777;
if (mount("msdos", mountpoint, MNT_RDONLY, (caddr_t)&args) == -1) {
msgConfirm("Error mounting %s on %s: %s (%u)", args.fspec, mountpoint, strerror(errno), errno);
return FALSE;
}
DOSMounted = TRUE;
return TRUE;
}
FILE *
mediaGetDOS(Device *dev, char *file, Boolean probe)
{
return mediaGenericGet(mountpoint, file);
}
void
mediaShutdownDOS(Device *dev)
{
if (!DOSMounted)
return;
if (unmount(mountpoint, MNT_FORCE) != 0)
msgConfirm("Could not unmount the DOS partition from %s: %s",
mountpoint, strerror(errno));
else
DOSMounted = FALSE;
return;
}